pellikan



(No Model.) 2 Sheets-Sheet 2.

C. 0. PELLIKAN.

LAMP. 4

No. 456,963. Patented Aug. 4, 1891.

Ii'llrarllll'l ill'illiirlllflllli ATTORNEYS.

I. wumunrcm u c UNITED STATES PATENT FFICE.

C. OTTO PELLIKAN, OF VIENNA, AUSTRIA*HUNGARY.

SPECIFICATION forming part of Letters Patent No. 456,963, dated August4, 1891. Application filed June 22,1887. Renewed June 5, 1891. SerialNo. 395,184. (No model.)

To all whom it may concern:

Be it known that I, C. OTTO PELLIKAN, a subject of the Emperor ofAustria, residing at the city of Vienna, in the Empire of Austria-Hungary, have invented a new and useful Improvement in Lamps, of whichthe following is a specification.

The object of my invention is to provide the wicks of lamps with anon-conductin g sheath which will prevent the convection of heat fromthe flame down into the reservoir of the lamp.

The nature of the invention consists in the details of combination andconstruction, substantially as illustrated in the accompanying drawings,hereinafter described, and subsequently pointed out in the claims.

Figure 1 is a side View of my device with a part broken away toillustrate the wick and the interior spring. Fig. 2 is a side view inelevation of the same. Fig. 3 is another side View illustrating amodification of my invention, more fully hereinafter described. Fig. 4illustrates a lamp having a removable burner with my invention applied.Fig. 4: illustrates a lamp with a fixed burner and with my deviceapplied. Fig. 5 shows three detail views illustrating the form andoperation of the ring 0", hereinafter more fully described.

In the drawings, g designates a tubular sheath, which may be round,fiat, oval, or prismatic. In the example of my invention here given itis illustrated as being cylindrical. This sheath may be made of anynon-conducting material, such as mica, asbestos, hard rubber, and thelike. NVhen made of a material which is not of a plastic naturesuch, forexample, as micaa sheet of the material is bent into the desired form,and retained in position by the end rings 3 s. The ring 8, which is onthe bottom end, may, if it be desirable, be perforated. This, however,is hardly ever necessary, because the unevenness of material almostalways allows room enough for oil to pass under the sheath into thelower end of the wick. To further insure the permanency of this sheath,a plate is fixed over the connection formed by the two 1011- gitudinaledges. In this plate is cut the rack z. The spring r, which, asillustrated, is of annular form, is fitted to the inside of the upperpart of the sheath, so that it will compress the wick, as hereinafterdescribed.

To use this invention'in the case of alamp with a removable burner, asillustrated in Fig. 4, the lower part of the wick d is inserted into thesheath until there is only enough thereof without the ring 3 to pass upproperly through the burner. The spring-ring 'r is then put into theinside of the wick, so that it will compress the wick against the insideof the upper part of the sheath. The part of the wick without the sheathis now inserted into the burner in the common way. The burner is thenput on the lamp, so that the sheath g will stand upright in thereservoir around the wick a little below the burner, being retained inplace by the wick, which is compressed, as before described, by thespring 4'. The pressure of .this ring is snfficient to hold up thesheath, but not so much, however, but that the wick may be slipped upand down, as may be required for adjustment, without in any waydisturbing the sheath. When a new wick is to be put in, the burneristaken off, the sheath taken out and arranged as before described. Inthe case of a lamp with a fixed burner, as illustrated in Fig. 4:, thefeed-wheel projects a little into the wicktube, and as it is downthrough this tube the sheath 9 and wick 01 must passsome provision mustbe made to avoid the teeth of the wick-feed wheel, which would otherwisebe in the way. To this end the rack z is provided, which is of the samepitch as the feed-wheel. When the sheath has been put on the wick, asbefore described, the wick and sheath are pushed down the wick-tube 2until the teeth of the feed-wheel engage the rack. Then, by turning thefeed-wheel, the sheath will be carried down until it passes said wheeland stands upright in the reservoir just below the burner and with itsupper end just out of reach of the feed-wheel. Now if the feed wheel beslowly turned the wick may be slipped either Way as much as may berequired for adjustment without disturbing the sheath; but if thefeed-wheel be suddenly turned with a jerk in the proper direction thesheath will be brought far enough upward to engage the feed-wheel. Byturning the feedwheel the sheath may now be brought out of the lampthrough the burner.

In all cases it is intended that the wick shall be adjusted for clippingand increasing and decreasing the light entirely independently of thesheath.

5 If the material of which the sheath g is made be plastic, as rubber,gutta-percha, and the like, the rack .2 may he formed in the material,as illustrated in Fig. 3, in which case the end rings .9 and 3 may beused as illustrated in said Fig. 3, or, if the material be of sufficientstrength, dispensed with entirely.

By the use of my invention as hereinbefore described the oil in thereservoir of the lamp will always be kept so cool that no vapor will begenerated sufficient to produce an explosion.

What I claim, and desire to secure by Letters Patent, is-- 1. Thecombination, With the wick of a lamp, of a sheath of non-conductingmaterial to surround said wick in the reservoir of the lamp below theburner, a rack upon the side of said sheath to afford facility forraising it out of and lowering it into the reservoir of the lamp, and aspring Within the upper end of said sheath, whereby the said wick iscompressed against the interior of said sheath, all substantially as andfor the purpose set forth.

2. In a lamp, the combination of the nonconduoting sheath g, theferrules s and s, and the rack z, substantially as and for the purposeset forth.

3. In alamp, the combination of the nonconducting sheath the ferrules sand s, the rack z, the Wick d, and the spring 1', substantially as andfor the purpose set forth.

In Witness whereof I hereunto set my hand in presence of two witnesses.

O. OTTO PELLIKAN.

Witnesses:

EDMUND J UssEN, VlCTOR TISCHLER.

